Objective 20 deals with you putting equations into your calculator such as; y = x^3+2x^2-x. Equations such as this one are fairly easy to do all you have to do is put it in your calculator.
Here are the steps for using your calculator:
1. Turn on your graphing calculator
2. Go into your y=
3. Put in the equation in your y= space, make sure you put the equation in right!
4. After you have put in the equation, hit the graph button
5. If your window settings are set bad go ino your zoom menu and hit 6 then go back to your graph
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Here is an eample of a graph that you could get if you put in the righ equation

Well here is another way to do it, is to use graphmatica,

1. Go to your start menu and click programs
2. Go to your network software click on math stuff
3. In that folder click graphmatica
4. At the top there is a bar where you can put in the equation
5. Make sure if your using graphmatica that you put y= before you put in your equation or it won't work
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This is my way of learning how to do this problems...I'm not sure if this is how any of you guys do them,
but this is probably the most easiest and fastest way to do this.